Boat fires up fine and idled great. But once it get up to almost plane af half throttle it starts surging hard. I thought bad fuel so drained the whole tank started fresh, replaced the plugs and wires cleaned the air flow and put a new water fuel separator on it. It did have a melted exhaust...
I have a 1995 four winns with a 5.0 cobra and omc drive. I think I had gotten some bad fuel. Ran great the first 2 times out then I fueled up (premium) as always but a different gas station. It ran and got up to speed and planned out. After about an hour it started surging real bad and couldn't...
